vyvamse?

Dude

If you take it or took it did you like it. What side effects did you have? what mg were you on? I started biphentin to try amd 20mg worked for like half the day i went up to 30 and everyday at like 530 i would get a heavy/tight chest so i decided not to up the dose again encase the after effects got worse. So now im trying vyvanse. I know different ppl react differently just want to see other ppls experience.